ABC's White House correspondent Jake Tapper is just that was the new book about an attack on a remote US military base in Afghanistan of the book is called the outpost an untold story of American ballot. Hey -- talk with -- Jimmy Kimmel about the surreal experience of writing a book about Afghanistan. Interviewed hundreds of people including people who aren't necessarily on our side -- I did interview an insurgent reports him. And how do you interview an insurgent like is there they are Craigslist are -- there. -- -- -- -- And the fixer was from this remote region it's called nurse stands -- the man who would be king took place the old Rudyard Kipling on the dollar and then in the movie with Michael -- And this fixer. Found an insurgent and it was it was so bizarre I'm sitting in my nice little study with my computer on my. -- -- -- -- And I'm Skyping with an insurgent one of -- many guys who has done. Come in and reconciled with the government -- is no longer an insurgent okay. So it's not like I know -- the bad guy is -- he's he's actually now he's he's cool in the book you talk about -- the nurse standings and how they're kind of us different culture from the other Afghan is like the Afghanistan of Afghanistan they are completely cut off they don't want anybody there -- and they were the last ones to convert to Islam. And their first ones to take up arms against the Soviets they -- they -- rebellious people this outpost that I profile outside it. Our though how -- out shells of former Soviet personnel carriers which for a lot of the soldiers was not reassure. So they're not watching. Cable news they're not getting CNN analogy zero well in those aren't a lot of short wave radio it's a -- -- means. It depends on the on the on the town but but you know it's -- it's it's cut off from a lot of civilization. -- -- about that -- and grass kick off on the book is that he was inspired to write because news of the attack where there's eight soldiers were killed came out. On the same day. That his that his son was born back in 2009 -- really I think the motivation for the -- from from from -- -- -- as a as a -- something -- -- -- The Genesis of we thank -- for -- -- of those stories that otherwise would have spend untold results in many of them answered that's for sure.

This transcript has been automatically generated and may not be 100% accurate.

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